The MICROSCOPE mission: first results of a space test of the Equivalence Principle
| Autor: | Touboul, Pierre, Métris, Gilles, Rodrigues, Manuel, André, Yves, Baghi, Quentin, Bergé, Joel, Boulanger, Damien, Bremer, Stefanie, Carle, Patrice, Chhun, Ratana, Christophe, Bruno, Cipolla, Valerio, Damour, Thibault, Danto, Pascale, Dittus, Hansjoerg, Fayet, Pierre, Foulon, Bernard, Gageant, Claude, Guidotti, Pierre-Yves, Hagedorn, Daniel, Hardy, Emilie, Huynh, Phuong-Anh, Inchauspe, Henri, Kayser, Patrick, Lala, Stéphanie, Lämmerzahl, Claus, Lebat, Vincent, Leseur, Pierre, Liorzou, Françoise, List, Meike, Löffle, Frank, Panet, Isabelle, Pouilloux, Benjamin, Prieur, Pascal, Rebray, Alexandre, Reynaud, Serge, Rievers, Benny, Robert, Alain, Selig, Hanns, Serron, Laura, Sumner, Timothy, Tanguy, Nicolas, Visser, Pieter |
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| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Phys. Rev. Lett. 119, 231101 (2017) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevLett.119.231101 |
| Popis: | According to the Weak Equivalence Principle, all bodies should fall at the same rate in a gravitational field. The MICROSCOPE satellite, launched in April 2016, aims to test its validity at the $10^{-15}$ precision level, by measuring the force required to maintain two test masses (of titanium and platinum alloys) exactly in the same orbit. A non-vanishing result would correspond to a violation of the Equivalence Principle, or to the discovery of a new long-range force. Analysis of the first data gives $\delta\rm{(Ti,Pt)}= [-1 \pm 9 (\mathrm{stat}) \pm 9 (\mathrm{syst})] \times 10^{-15}$ (1$\sigma$ statistical uncertainty) for the titanium-platinum E\"otv\"os parameter characterizing the relative difference in their free-fall accelerations. Comment: Typos corrected |
| Databáze: | arXiv |
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